I recently upgraded my RAM from 512MB to 1024MB, but the "free"-command only reports 885MB of physical RAM (and so does gnome-system-monitor).
Before the upgrade, the same programs reported 502MB, which I thought was pretty close and perhaps normal (I'm still kinda new to this) and didn't give it much thought, but for Linux only to use 885/1024 is a shame!

My BIOS, WinXP and memtest86 all report 1024MB of RAM is installed and working so either I've misconfigured something somewhere, or ... dunno...

I tried googling for the answer, and read somewhere to include append="mem=xM" (where x is my RAM i MB) in my lilo.conf, but that didn't do a thing (yes, I ran lilo afterwards).


I'm using Linux 2.6.7 on Slackware-current (from about two weeks before the release of 10.0).

My motherboard is an Epox-8rda3+ with Nforce2, 2x256MB + 1x512MB of RAM in Dual Channel configuration.


Any help would be greatly appreciated.




Tomas412

In your kernel configuration you need to enable himem:
Processor type and features --> High memory support
Set it to 4GB and you will be OK.


Håkan

Of cource! Thanks for the quick reply! Problem solved...

This forum is excellent, I found this post useful, thanks!

These last 2 posts are excellent -- thanks both tomas412 and pauleoyote for reporting that the solution worked.

Providing feedback, particularly positive, is always extremely helpful to future readers. Thanks -- J.W.

Yes, plus it's very nice to know it's appreciated!


Håkan